Combustion system of glass kiln

Abstract

The utility model discloses a combustion system of a glass kiln, which relates to the technical field of glass kilns and comprises a combustion-supporting air main pipeline, a steam main pipeline and a plurality of heat exchangers, and a first outlet end of the combustion-supporting air main pipeline is connected with a plurality of combustion-supporting air branch pipelines. One end of each combustion-supporting air branch pipeline is connected with the glass kiln; the second outlet end of the steam main pipeline is connected with a plurality of steam branch pipelines, and one steam branch pipeline is correspondingly connected with one combustion-supporting air branch pipeline; a heat exchanger is arranged between each combustion-supporting air branch pipeline and the corresponding steam branch pipeline, each combustion-supporting air branch pipeline is provided with a first adjusting valve, each combustion-supporting air branch pipeline is provided with a temperature detector, and each steam branch pipeline is provided with a second adjusting valve. According to the technical scheme, the unsaturated steam is adopted, so that the temperature of combustion-supporting air can be effectively increased, the combustion efficiency of the combustion system is improved, and the effect of saving energy is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of glass kilns, in particular to a combustion system of a glass kiln. Background Art

[0002] Glass kiln is one of the major thermal equipment in glass production, and is also the core equipment in the production line of solar photovoltaic glass and other glass products. Glass kiln is a process in which qualified mixed raw materials are formed, clarified, homogenized and cooled into glass liquid, and the glass liquid becomes qualified and enters the forming stage for processing.

[0003] At present, glass kilns usually use natural gas as heating fuel and introduce outside air to assist combustion. The heating fuel burns at high temperature and releases heat to heat the mixed raw materials to melt the mixed raw materials into glass liquid. Among them, the unsaturated steam generated by the waste heat of the glass kiln is generally discharged in the form of waste steam, which greatly wastes thermal energy resources. Utility Model Content

[0004] The main purpose of the utility model is to provide a combustion system for a glass kiln, aiming to effectively utilize the unsaturated steam generated by the waste heat of the glass kiln to achieve the effect of energy saving.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a combustion system for a glass furnace, the combustion system comprising:

[0006] A combustion air main pipeline is provided with a first inlet end and a first outlet end which are connected to each other, wherein the first inlet end is used to introduce combustion air, and the first outlet end is connected to a plurality of combustion air branch pipelines, and an end of each of the combustion air branch pipelines away from the first outlet end is connected to the glass furnace;

[0007] The steam main pipe is provided with a second inlet end and a second outlet end which are connected to each other, wherein the second inlet end is used to introduce unsaturated steam generated by waste heat of the glass furnace, and the second outlet end is connected to a plurality of steam branch pipes, and one end of the steam branch pipe away from the second outlet end is correspondingly connected to one of the combustion air branch pipes;

[0008] A plurality of heat exchangers, one of the heat exchangers being arranged between the corresponding combustion air branch pipe and the steam branch pipe, for exchanging heat between the combustion air in the combustion air branch pipe and the unsaturated steam in the steam branch pipe;

[0009] Each of the combustion air branch pipes is provided with a first regulating valve near the inlet, each of the combustion air branch pipes is provided with a temperature detector at the connection between the combustion air branch pipe and the glass kiln, and each of the steam branch pipes is provided with a second regulating valve.

[0010] In one embodiment, each of the combustion air branch pipes includes a first branch pipe section and a second branch pipe section, the inlet and outlet of the first branch pipe section are respectively connected to the first outlet end and an inlet of the heat exchanger, and the inlet and outlet of the second branch pipe section are respectively connected to an outlet of the heat exchanger and the glass kiln; the second outlet end is connected to the other inlet of the heat exchanger, and the other outlet of the heat exchanger is connected to a collection device.

[0011] In one embodiment, the combustion system also includes a first distribution device, the first distribution device has a first distribution inlet and multiple first distribution outlets, the first outlet end is connected to the first distribution inlet, and one first distribution outlet is correspondingly connected to the inlet of one of the first branch pipe sections; and / or, the combustion system also includes a second distribution device, the second distribution device has a second distribution inlet and multiple second distribution outlets, the second outlet end is connected to the second distribution inlet, and one of the second distribution outlets is correspondingly connected to the inlet of one of the steam branch pipes.

[0012] In one embodiment, the combustion system further comprises:

[0013] Multiple groups of combustion furnaces, the inlet of one combustion furnace is correspondingly connected to the outlet of one second branch pipe section, and the outlet of one combustion furnace is connected to the glass furnace;

[0014] A natural gas pipeline, the outlet of which is connected to the glass furnace;

[0015] An oxygen content detector is provided at a position adjacent to the combustion furnace in each of the second branch pipeline sections, and a third regulating valve is provided in the natural gas pipeline.

[0016] In one embodiment, the natural gas pipeline is further provided with a natural gas flow meter.

[0017] In one embodiment, the combustion system further comprises a heat storage element having a plurality of separated heat storage chambers, wherein an inlet and an outlet of one of the heat storage chambers are respectively connected to an outlet of one of the second branch pipe sections and an inlet of one of the combustion furnaces.

[0018] In one embodiment, a plurality of groups of combustion furnaces are relatively arranged on both sides of the glass kiln, and two combustion-supporting air main pipes are provided, and the first outlet ends of the two combustion-supporting air main pipes are respectively connected to the combustion furnaces on both sides through the first branch pipe section and the second branch pipe section; the two combustion-supporting air main pipes are interconnected through a connecting pipe, and the connecting pipe is provided with a first reversing gate plate and a second reversing gate plate; the glass kiln also includes an exhaust gas treatment device, and the exhaust gas treatment device is connected to the connecting pipe through a connecting pipe, and the first reversing gate plate and the second reversing gate plate are respectively located on both sides of the connecting pipe.

[0019] In one embodiment, the combustion system further comprises two combustion-supporting fans, the outlets of the two combustion-supporting fans are respectively connected to the first inlet ends of the two combustion-supporting air main ducts; and / or, both combustion-supporting air main ducts are provided with combustion-supporting air dampers.

[0020] In one embodiment, each of the combustion air branch pipes is provided with a combustion air flow meter near the inlet; and / or each of the steam branch pipes is provided with a steam flow meter.

[0021] In one embodiment, the combustion system further comprises a buffer device, the inlet of the buffer device is used to allow unsaturated steam generated by waste heat of the glass furnace to pass through, and the outlet of the buffer device is connected to the second inlet end.

[0022] According to the technical solution of the utility model, the combustion system of the glass kiln includes a combustion air main pipeline, a steam main pipeline and a plurality of heat exchangers, the combustion air main pipeline is provided with a first inlet end and a first outlet end which are connected to each other, the first inlet end is used for introducing combustion air, the first outlet end is connected with a plurality of combustion air branch pipelines, and an end of each combustion air branch pipeline away from the first outlet end is connected to the glass kiln; the steam main pipeline is provided with a second inlet end and a second outlet end which are connected to each other, the second inlet end is used for introducing unsaturated steam generated by waste heat of the glass kiln, the second outlet end is connected with a plurality of steam branch pipelines, and an end of a steam branch pipeline away from the second outlet end is connected to a corresponding combustion air branch pipeline; a heat exchanger is provided between the corresponding combustion air branch pipeline and the steam branch pipeline, for exchanging heat between the combustion air in the combustion air branch pipeline and the unsaturated steam in the steam branch pipeline; a first regulating valve is provided near the inlet of each combustion air branch pipeline, a temperature detector is provided at the connection between each combustion air branch pipeline and the glass kiln, and a second regulating valve is provided on each steam branch pipeline. The technical solution of the utility model uses unsaturated steam generated by waste heat of a glass kiln to heat the combustion air through a heat exchanger, which can effectively increase the temperature of the combustion air, improve the combustion efficiency of the combustion system, and thus achieve the effect of saving energy. In addition, the opening of the first regulating valve on the corresponding combustion air branch pipe and / or the second regulating valve on the steam branch pipe can be independently adjusted according to the temperature value detected by the temperature detector on each combustion air branch pipe, so as to more effectively increase the temperature of the combustion air in each combustion air branch pipe, thereby more effectively improving the combustion efficiency of the combustion system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of a flow chart of an embodiment of a combustion system of a glass kiln provided by the utility model;

[0025] Figure 2 for Figure 1 A schematic top view of an embodiment of a combustion system of a glass furnace.

[0026] Description of Figure Numbers:

[0027] 100. Combustion system; 1. Combustion air main pipeline; 11. Combustion air branch pipeline; 111. First branch pipeline section; 111a. First regulating valve; 111b. Combustion air flow meter; 112. Second branch pipeline section; 112a. Temperature detector; 112b. Oxygen content detector; 12. Connecting pipe; 121. First reversing gate; 122. Second reversing gate; 13. Combustion air damper; 2. Steam main pipeline; 21. Steam branch pipeline; 211. Second regulating valve; 212. Steam flow meter; 3. Heat exchanger; 4. First distribution device; 5. Second distribution device; 6. Combustion furnace; 7. Natural gas pipeline; 71. Third regulating valve; 72. Natural gas flow meter; 8. Heat storage element; 81. Heat storage chamber; 9. Exhaust gas treatment device; 91. Connecting pipe; 10. Combustion fan; 20. Buffer device; 200. Glass kiln.

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0032] The utility model provides a combustion system 100 of a glass kiln 200, which aims to effectively utilize unsaturated steam generated by waste heat of the glass kiln 200 to achieve the effect of energy saving.

[0033] See also Figure 1 and Figure 2 In one embodiment of the utility model, the combustion system 100 of the glass kiln 200 includes a combustion air main pipeline 1, a steam main pipeline 2 and a plurality of heat exchangers 3. The combustion air main pipeline 1 is provided with a first inlet end and a first outlet end which are connected to each other. The first inlet end is used to pass the combustion air. The first outlet end is connected to a plurality of combustion air branch pipelines 11, and each of the combustion air branch pipelines 11 is connected to the glass kiln 200 at one end away from the first outlet end. The steam main pipeline 2 is provided with a second inlet end and a second outlet end which are connected to each other. The second inlet end is used to pass the unsaturated steam generated by the waste heat of the glass kiln 200. The second outlet end is connected to a plurality of combustion air branch pipelines 11. A steam branch pipe 21 is provided, and one end of the steam branch pipe 21 away from the second outlet end is connected to a corresponding combustion air branch pipe 11; a heat exchanger 3 is arranged between the corresponding combustion air branch pipe 11 and the steam branch pipe 21, for exchanging heat between the combustion air in the combustion air branch pipe 11 and the unsaturated steam in the steam branch pipe 21; a first regulating valve 111a is provided near the inlet of each combustion air branch pipe 11, a temperature detector 112a is provided at the connection between each combustion air branch pipe 11 and the glass kiln 200, and a second regulating valve 211 is provided on each steam branch pipe 21.

[0034] In this embodiment, the number of combustion air branch pipes 11 is determined according to the number of combustion air inlets of the glass kiln 200, the number of steam branch pipes 21 is consistent with the number of combustion air branch pipes 11, the outlet end of one steam branch pipe 21 is connected to a corresponding combustion air branch pipe 11, and its inlet is connected to the unsaturated steam outlet generated by the waste heat of the glass kiln 200 through a pipe. The unsaturated steam generated by the waste heat of the glass kiln 200 heats the combustion air in the combustion air branch pipe 11 through the heat exchanger 3, so as to increase the temperature of the combustion air, improve the combustion efficiency, and reasonably use and save energy. The first regulating valve 111a on the combustion air branch pipe 11 is a solenoid valve, which is used to adjust the amount of combustion air entering the combustion air branch pipe 11. The temperature detector 112a is arranged on the combustion air branch pipe 11 and close to its outlet end, and is used to detect the temperature after the unsaturated steam and the combustion air are mixed, that is, the temperature after the combustion air and the unsaturated steam are exchanged. The second regulating valve 211 provided on the steam branch pipe 21 is a solenoid valve, which is used to adjust the amount of unsaturated steam introduced into the steam branch pipe 21 .

[0035] In addition, a heat exchanger 3 is provided between the connected combustion air branch pipe 11 and the steam branch pipe 21 to ensure more effective and sufficient heat exchange between the unsaturated steam and the combustion air, that is, to more fully and effectively utilize the unsaturated steam generated by the waste heat of the glass kiln 200 and more effectively achieve the effect of saving energy.

[0036] The technical solution of the utility model uses unsaturated steam generated by the waste heat of the glass kiln 200 and heats the combustion air through the heat exchanger 3, which can effectively increase the temperature of the combustion air, improve the combustion efficiency of the combustion system 100, and thus achieve the effect of saving energy. In addition, the opening of the first regulating valve 111a on the corresponding combustion air branch pipe 11 and / or the second regulating valve 211 on the steam branch pipe 21 can be independently adjusted according to the temperature value detected by the temperature detector 112a on each combustion air branch pipe 11, so as to more effectively increase the temperature of the combustion air in each combustion air branch pipe 11, thereby more effectively improving the combustion efficiency of the combustion system 100.

[0037] Please refer again Figure 1 and Figure 2 In one embodiment of the utility model, each combustion air branch pipe 11 includes a first branch pipe section 111 and a second branch pipe section 112. The inlet and outlet of the first branch pipe section 111 are respectively connected to the first outlet end and an inlet of the heat exchanger 3, and the inlet and outlet of the second branch pipe section 112 are respectively connected to an outlet of the heat exchanger 3 and the glass furnace 200; the second outlet end is connected to the other inlet of the heat exchanger 3, and the other outlet of the heat exchanger 3 is connected to a collecting device. With such a design, the connection structure is relatively simple and the assembly operation is relatively convenient.

[0038] It should be noted that the unsaturated steam becomes condensed water after heat exchange with the combustion air, and the condensed water is collected by a collecting device connected to another outlet of the heat exchanger 3.

[0039] Optionally, the heat exchanger 3 is a plate heat exchanger 3, and its specific structure can refer to the prior art and will not be described in detail here.

[0040] Please refer again Figure 1 and Figure 2 In one embodiment of the present invention, the combustion system 100 also includes a first distribution device 4, the first distribution device 4 has a first distribution inlet and multiple first distribution outlets, the first outlet end is connected to the first distribution inlet, and a first distribution outlet is correspondingly connected to the inlet of a first branch pipe section 111.

[0041] In this embodiment, the first distribution device 4 is used to distribute the combustion-supporting air, and its specific structure is not limited. Optionally, the amount of combustion-supporting air flowing out of the multiple first distribution outlets is the same, that is, the first distribution device 4 evenly distributes the combustion-supporting air. With such a setting, under the same conditions, the amount of combustion-supporting air in each combustion-supporting air branch pipe 11 is the same.

[0042] Please refer again Figure 1 and Figure 2 In one embodiment of the utility model, the combustion system 100 also includes a second distribution device 5, the second distribution device 5 has a second distribution inlet and multiple second distribution outlets, the second outlet end is connected to the second distribution inlet, and a second distribution outlet is correspondingly connected to the inlet of a steam branch pipe 21.

[0043] In this embodiment, the second distribution device 5 is used to distribute the unsaturated steam, and its specific structure is not limited. Optionally, the amount of combustion-supporting air flowing out of the plurality of second distribution outlets is the same, that is, the second distribution device 5 is used to evenly distribute the unsaturated steam. With such a setting, under the same conditions, the amount of unsaturated steam in each steam branch pipe 21 is the same.

[0044] Please refer again Figure 1 and Figure 2 In one embodiment of the utility model, the combustion system 100 also includes a plurality of combustion furnaces 6 and natural gas pipelines 7, the inlet of a combustion furnace 6 is correspondingly connected to the outlet of a second branch pipeline section 112, and the outlet of a combustion furnace 6 is connected to the glass kiln 200; the outlet of the natural gas pipeline 7 is connected to the glass kiln 200; an oxygen content detector 112b is provided at a position adjacent to the combustion furnace 6 of each second branch pipeline section 112, and a third regulating valve 71 is provided on the natural gas pipeline 7.

[0045] In the present embodiment, a plurality of groups of combustion furnaces 6 are arranged on the side of the glass kiln 200, and the outlet of each combustion furnace 6 is connected to the inner cavity of the glass kiln 200, so as to introduce combustion-supporting air into the inner cavity of the glass kiln 200, and the outlet of the natural pipeline is also connected to the inner cavity of the glass kiln 200, so as to introduce combustion-supporting air into the inner cavity of the glass kiln 200; and an oxygen content detector 112b is arranged at a position adjacent to the combustion furnace 6 of each second branch pipeline section 112, and a third regulating valve 71 is arranged on the natural gas pipeline 7, and the oxygen content detector 112b on each second branch pipeline section 112 can be used to independently adjust the opening of the first regulating valve 111a and the opening of the third regulating valve 71, so as to achieve a linkage effect, realize the intelligent management of the air-gas ratio relationship between combustion-supporting air and natural gas, thereby improving the combustion efficiency of natural gas and reducing the energy consumption of natural gas.

[0046] Furthermore, the natural gas pipeline 7 is also provided with a natural gas flow meter 72. The provision of the natural gas flow meter 72 can monitor the flow change of the natural gas in the natural gas pipeline 7 in real time, so that the operator can accurately adjust the opening of the first regulating valve 111a and the third regulating valve 71 according to the flow change of the natural gas flow meter 72.

[0047] Please refer again Figure 1 and Figure 2 In one embodiment of the utility model, the combustion system 100 also includes a heat storage element 8, which has a plurality of separated heat storage chambers 81, and the inlet and outlet of a heat storage chamber 81 are respectively connected to the outlet of a second branch pipe section 112 and the inlet of a combustion furnace 6.

[0048] In this embodiment, the setting of the heat storage element 8 can preheat the combustion air after heat exchange, that is, the combustion air after heat exchange with unsaturated steam is preheated by the heat storage element 8 before entering the combustion furnace 6, so that the combustion of the glass kiln 200 can be more complete.

[0049] Please refer again Figure 1 and Figure 2 In one embodiment of the utility model, a plurality of combustion furnaces 6 are relatively arranged on both sides of a glass kiln 200, two combustion air main pipes 1 are provided, and the first outlet ends of the two combustion air main pipes 1 are respectively connected to the combustion furnaces 6 on both sides through a first branch pipe section 111 and a second branch pipe section 112; the two combustion air main pipes 1 are connected through a connecting pipe 12, and a first reversing gate plate 121 and a second reversing gate plate 122 are provided on the connecting pipe 12; the glass kiln 200 also includes an exhaust gas treatment device 9, which is connected to the connecting pipe 12 through a connecting pipe 91, and the first reversing gate plate 121 and the second reversing gate plate 122 are respectively located on both sides of the connecting pipe 91.

[0050] Specifically, multiple groups of combustion furnaces 6 are respectively arranged on the upper and lower sides of the glass kiln 200. The specific arrangement and connection method of each combustion furnace 6 can refer to the above embodiment, and will not be described one by one here. The upper combustion air main pipeline 1 and the lower combustion air main pipeline 1 are connected by a connecting pipe 12, and a first reversing gate 121 and a second reversing gate 122 are arranged in the connecting pipe 12. A connecting pipe 91 is connected to the connecting pipe 12 between the first reversing gate 121 and the second reversing gate 122, and the connecting pipe 91 is connected to the exhaust gas treatment device 9. The first reversing gate 121 and the second reversing gate 122 have the function of reversing, and the first reversing gate 121 and the second reversing gate 122 are periodically opened or closed. The periodic reversing can extend the service life of the glass kiln 200.

[0051] Furthermore, the combustion system 100 further includes two combustion-supporting fans 10, the outlets of the two combustion-supporting fans 10 are respectively connected to the first inlet ends of the two combustion-supporting air main pipes 1, for conveying combustion-supporting air. Optionally, the combustion-supporting fans 10 are centrifugal volute fans, and their frequency is adjustable, that is, the flow rate of air in the combustion-supporting air branch pipe 11 can be adjusted by adjusting the frequency of the combustion-supporting fans 10.

[0052] Furthermore, both combustion-supporting air main pipes 1 are provided with combustion-supporting air dampers 13 for controlling the flow of combustion-supporting air in the combustion-supporting air main pipes 1 or blocking the flow thereof.

[0053] In the first cycle, the combustion air damper 13 in the upper combustion air main duct 1 is opened, the combustion air damper 13 in the lower combustion air main duct 1 is closed, the first reversing damper 121 is closed, and the second reversing damper 122 is opened, and the combustion fan 10 transports the combustion air to the first distribution device 4 through the upper combustion air main duct 1. After distribution by the first distribution device 4, the combustion air enters each combustion air branch duct 11 and enters the heat exchanger 3 with the unsaturated steam from the steam branch duct 21 for heat exchange. After heat exchange, it flows into the corresponding heat storage chamber 81 and the combustion furnace 6 in turn, and finally enters the glass kiln 200 to burn to form a flame, which can heat the mixed raw materials in the glass kiln 200 to achieve glass melting, and the combustion smoke flows into the lower combustion furnace 6, the heat storage chamber 81, the combustion air branch duct 11, the first distribution box, the lower combustion air main duct 1 in turn, and finally flows into the exhaust gas treatment device 9 via the connecting pipe 91.

[0054] In the second cycle, the combustion air damper 13 in the upper combustion air main duct 1 is closed, the combustion air damper 13 in the lower combustion air main duct 1 is opened, the first reversing damper 121 is closed, and the second reversing damper 122 is opened, and the combustion fan 10 transports the combustion air to the first distribution device 4 through the lower combustion air main duct 1. After being distributed by the first distribution device 4, the combustion air enters each combustion air branch duct 11, and enters the heat exchanger 3 with the unsaturated steam from the steam branch duct 21 for heat exchange, and then flows into the corresponding heat storage chamber 81 and the combustion furnace 6 in turn, and finally enters the glass kiln 200 to burn to form a flame, which can heat the mixed raw materials in the glass kiln 200 to achieve glass melting, and the combustion smoke flows into the upper combustion furnace 6, the heat storage chamber 81, the combustion air branch duct, the first distribution device 4, the upper combustion air main duct 1 in turn, and finally flows into the exhaust gas treatment device 9 via the connecting pipe 91.

[0055] Furthermore, each combustion air branch pipe 11 is provided with a combustion air flow meter 111b near the inlet, which is used to detect the flow changes of the combustion air in the combustion air main pipe 1 in real time, so that the operator can accurately adjust the opening of the first regulating valve 111a and / or the frequency of the combustion fan 10 according to the flow changes detected in real time by the combustion air flow meter 111b.

[0056] Furthermore, a steam flow meter 212 is provided on each steam branch pipe 21 for real-time detection of flow changes of unsaturated steam in each steam branch pipe 21, so that the operator can accurately adjust the opening of the second regulating valve 211 according to the flow changes detected in real time by the steam flow meter 212.

[0057] Please refer again Figure 1 In one embodiment of the present invention, the combustion system 100 further includes a buffer device 20, the inlet of the buffer device 20 is used to introduce unsaturated steam generated by waste heat of the glass kiln 200, and the outlet of the buffer device 20 is connected to the second inlet end.

[0058] In this embodiment, the buffer device 20 can collect and buffer unsaturated steam to ensure continuous heat exchange operation of unsaturated steam in the combustion system 100. The specific structure of the buffer device 20 is not limited, and can be a can-shaped structure or a barrel-shaped structure.

[0059] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A combustion system for a glass furnace, characterized in that: The combustion system comprises: A combustion air main pipeline is provided with a first inlet end and a first outlet end which are connected to each other, wherein the first inlet end is used to introduce combustion air, and the first outlet end is connected to a plurality of combustion air branch pipelines, and an end of each of the combustion air branch pipelines away from the first outlet end is connected to the glass furnace; The steam main pipe is provided with a second inlet end and a second outlet end which are connected to each other, wherein the second inlet end is used to introduce unsaturated steam generated by waste heat of the glass furnace, and the second outlet end is connected to a plurality of steam branch pipes, and one end of the steam branch pipe away from the second outlet end is correspondingly connected to one of the combustion air branch pipes; A plurality of heat exchangers, one of the heat exchangers being arranged between the corresponding combustion air branch pipe and the steam branch pipe, for exchanging heat between the combustion air in the combustion air branch pipe and the unsaturated steam in the steam branch pipe; Each of the combustion air branch pipes is provided with a first regulating valve near the inlet, each of the combustion air branch pipes is provided with a temperature detector at the connection between the combustion air branch pipe and the glass kiln, and each of the steam branch pipes is provided with a second regulating valve.

2. The combustion system of the glass furnace according to claim 1, characterized in that: Each of the combustion air branch pipes comprises a first branch pipe section and a second branch pipe section, wherein the inlet and outlet of the first branch pipe section are respectively connected to the first outlet end and an inlet of the heat exchanger, and the inlet and outlet of the second branch pipe section are respectively connected to an outlet of the heat exchanger and the glass furnace; The second outlet is connected to another inlet of the heat exchanger, and another outlet of the heat exchanger is connected to a collecting device.

3. The combustion system of the glass furnace according to claim 2, characterized in that: The combustion system further comprises a first distribution device, the first distribution device having a first distribution inlet and a plurality of first distribution outlets, the first outlet end being connected to the first distribution inlet, and one first distribution outlet being correspondingly connected to an inlet of one first branch pipe segment; and / or, The combustion system further comprises a second distribution device having a second distribution inlet and a plurality of second distribution outlets, wherein the second outlet end is connected to the second distribution inlet, and one second distribution outlet is correspondingly connected to an inlet of the steam branch pipe.

4. The combustion system of the glass furnace according to claim 2, characterized in that: The combustion system further comprises: Multiple groups of combustion furnaces, the inlet of one combustion furnace is correspondingly connected to the outlet of one second branch pipe section, and the outlet of one combustion furnace is connected to the glass furnace; A natural gas pipeline, the outlet of which is connected to the glass furnace; An oxygen content detector is provided at a position adjacent to the combustion furnace in each of the second branch pipeline sections, and a third regulating valve is provided in the natural gas pipeline.

5. The combustion system of the glass furnace according to claim 4, characterized in that: The natural gas pipeline is also provided with a natural gas flow meter.

6. The combustion system of the glass furnace according to claim 4, characterized in that: The combustion system also includes a heat storage element, which has a plurality of separated heat storage chambers. The inlet and outlet of one of the heat storage chambers are respectively connected to an outlet of the second branch pipeline section and an inlet of the combustion furnace.

7. The combustion system of the glass furnace according to claim 6, characterized in that: The plurality of groups of combustion furnaces are relatively arranged on both sides of the glass furnace, the number of the combustion air main pipes is two, and the first outlet ends of the two combustion air main pipes are respectively connected to the combustion furnaces on both sides through the first branch pipe section and the second branch pipe section; The two combustion air main pipes are connected through a connecting pipe, and the connecting pipe is provided with a first reversing damper and a second reversing damper; The glass furnace further includes an exhaust gas treatment device, which is connected to the connecting pipe via a connecting pipe, and the first reversing damper and the second reversing damper are respectively located on both sides of the connecting pipe.

8. The combustion system of the glass furnace according to claim 7, characterized in that: The combustion system further comprises two combustion-supporting fans, the outlets of the two combustion-supporting fans are respectively connected to the first inlet ends of the two combustion-supporting air main pipes; and / or, The two combustion-supporting air main pipelines are both provided with combustion-supporting air dampers.

9. The combustion system of a glass furnace according to any one of claims 1 to 8, characterized in that: Each of the combustion air branch pipes is provided with a combustion air flow meter near the inlet; and / or, A steam flow meter is provided on each of the steam branch pipes.

10. The combustion system of a glass furnace according to any one of claims 1 to 8, characterized in that: The combustion system also includes a buffer device, the inlet of the buffer device is used to allow unsaturated steam generated by waste heat of the glass furnace to pass through, and the outlet of the buffer device is connected to the second inlet end.

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